Nothing will come back, but maintenance/features(?) on code you and others wrote during a certain time period will continue - many companies are tepid about rew

Nothing will come back, but maintenance/features(?) on code you and others wrote during a certain time period will continue - many companies are tepid about rewrites (as an example: a web app I wrote in 2013 for a company is still in production, but not used as much since most people use their phone app) Something tells me I'll be riding out into the sunset doing a lot of JavaScript, Java, or C (I'm 52, been doing this fulltime since 1989).